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Bluetooth Makes The Wires Disappear
By Khieng (Ken) Chho
While relatively new to the ears of common consumers, Bluetooth technology has been around for several years and number of products that support this application grows year after year. Various technology-oriented companies advertise Bluetooth-enabled PDAs, laptops and mobile phones.
Bluetooth is a not-so-new technology that utilizes short-range radio connections, designed to take the place of cables that connect mobile or fixed electronic gadgets. Its main capabilities are low complexity, robustness, low power and low cost. Made to operate in noisy frequency places, the Bluetooth radio utilizes a fast acknowledgement and frequency hopping application to make a seamless connection.
Bluetooth radio modules move across at 2.4GHz, an unlicensed GSM band. The use of this frequency enables the technology avoid interference from other frequencies and signals. Bluetooth radio hops at a faster pace compared to other systems operating in the similar frequency level, as it uses shorter packets.
History of Bluetooth
The word Bluetooth can be traced to European history. The King of Denmark from 949 to 981 Harald Bluetooth was known for his unique ability to help people effectively communicate with each other. The reference to the king is appropriate for wireless communications technology. Characters on the Bluetooth logo come from the runic alphabet.
The basic definition based on BlueTooth.org indicates that it is a worldwide specification low-cost radio solution, small-form factor that enables direct communications between mobile phones, mobile computers, and other portable gadgets, and online connectivity.
Bluetooth gadgets operate on 2.4 GHz radio signals similar to many cordless telephones and 802.11 b/g wireless networking systems. However, Bluetooth has began to minimize interference and improve quality of transmission in response to almost excessive use of the frequency range in occupies. Interference problems have been greatly addressed in version 1.1 of the Bluetooth standard but these are not backward compatible to previous versions because of the considerable difference in hardware.
Bluetooth
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